[No QA] Check for undefined in promiseWhile.ts#39830
Merged
mountiny merged 2 commits intoExpensify:mainfrom Apr 9, 2024
Merged
[No QA] Check for undefined in promiseWhile.ts#39830mountiny merged 2 commits intoExpensify:mainfrom
mountiny merged 2 commits intoExpensify:mainfrom
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blazejkustra
reviewed
Apr 8, 2024
| console.info('[promiseWhile] promiseDoWhile() actionResult', actionResult); | ||
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| if (actionResult === undefined) { | ||
| resolve(); |
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Wow, great find @JKobrynski. I'm only curious if we should resolve or reject here?
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Great question, I'm going to ask for some opinions
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A slight adjustment:
function promiseDoWhile(condition: () => boolean, action: (() => Promise<void>) | DebouncedFunc<() => Promise<void>> | undefined): Promise<void> {
console.info('[promiseWhile] promiseDoWhile()');
return new Promise((resolve, reject) => {
console.info('[promiseWhile] promiseDoWhile() condition', condition);
const actionResult = action?.();
console.info('[promiseWhile] promiseDoWhile() actionResult', actionResult);
if (!actionResult) {
resolve();
return;
}
actionResult
.then(() => promiseWhile(condition, action))
.then(resolve)
.catch(reject);
});
}
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@cubuspl42 Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button] |
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Reviewer Checklist
Screenshots/VideosAndroid: NativeAndroid: mWeb ChromeiOS: NativeiOS: mWeb SafariMacOS: Chrome / SafariMacOS: Desktop |
mountiny
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Apr 8, 2024
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Thanks for digging into this, it looks good to me
blazejkustra
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Apr 9, 2024
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Finger crossed it fixes it! 🤞
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✋ This PR was not deployed to staging yet because QA is ongoing. It will be automatically deployed to staging after the next production release. |
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🚀 Deployed to staging by https://github.com/mountiny in version: 1.4.62-0 🚀
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🚀 Deployed to staging by https://github.com/mountiny in version: 1.4.62-0 🚀
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🚀 Deployed to staging by https://github.com/mountiny in version: 1.4.62-0 🚀
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🚀 Deployed to production by https://github.com/thienlnam in version: 1.4.62-17 🚀
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Details
To get the whole context of the bug check the latest logs.
I think the most likely cause of that promise loop is
actionResult(promiseWhile.ts) beingundefined(you can see all manyPromise<undefined>in the logs). The function takes that result and tries to perform the following actions on it:Which can't be done, as it's
undefinedbut there are no checks for it, so the function gets stuck.Optional chaining for this procedure was introduced in this PR. And here is a little demo of what difference it makes (S/O @blazejkustra)
My suggestion would be to add a simple check for
undefinedbefore trying to chain it and seeing if it solves our issue.Fixed Issues
$ #39066
PROPOSAL: N/A
Tests
Offline tests
QA Steps
PR Author Checklist
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